DCO
Ducommun Incorporated · Industrials · Aerospace & Defense
Momentum inputs (comparable managers):
holder breadth -7.7% ·
share flow -0.8% ·
net new positions -8.3%
· formula
Broad distribution: falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 4 | +1 | 19.29K | $2.30M | +1 | n/a |
| Q2 2026 | 101 | +7 | 10.11M | $1.86B | +12 | −5 |
| Q1 2026 | 97 | +5 | 9.64M | $1.17B | +11 | −6 |
| Q4 2025 | 92 | 0 | 9.09M | $864.78M | +2 | −2 |
| Q3 2025 | 18 | 0 | 4.77M | $458.46M | +1 | −1 |
| Q2 2025 | 15 | 0 | 4.69M | $387.82M | +1 | −1 |
| Q1 2025 | 12 | -1 | 2.07M | $120.31M | n/a | −1 |
| Q4 2024 | 13 | +3 | 2.09M | $133.05M | +3 | n/a |
| Q3 2024 | 9 | +1 | 1.32M | $87.02M | +1 | n/a |
| Q2 2024 | 8 | n/a | 1.23M | $71.23M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 588.88K | +12.6% | $34.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | GAMCO Investors ✦ | 588.28K | +1.1% | $34.14M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 319.35K | +3.0% | $18.54M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 189.01K | -2.4% | $10.97M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 5 | Renaissance Technologies ✦ | 126.40K | -29.6% | $7.33M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 83.48K | +14.5% | $4.84M | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 7 | Marshall Wace ✦ | 66.33K | +142.6% | $3.85M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 8 | Two Sigma Investments ✦ | 54.54K | -26.3% | $3.16M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 30.07K | -40.1% | $1.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Millennium Management ✦ | 19.02K | -16.6% | $1.10M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 5.95K | +12.2% | $346,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | Point72 Asset Management ✦ | 1.86K | +11.8% | $107,687 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Citadel Advisors | $3.01M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 222 holders, 13.57M shares, $1.55B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 2.50K sh · $509,875
Officer, Director · 5.77K sh · $1.16M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology